aliform,
Always wanted to visit Scotland. Here's some info that I hope may be of some use to you and your crew.
First of all I would like to propose a web site where you may find some tech. data. Perhaps you may already have those data from your charts but just in case:
http://worldaerodata.com/ Furthermore, regarding your specific requests.
Miami:
http://www.miami-airport.com/ It depends at what time you check in but they use to do a good job on radar (in my opinion) and most of the time you will be like 4-5 behind the preceding traffic. Big airport with a lot of traffic during rush hours, nothing special.
Guayaquil: Be careful! Clearances are not always neat, you must not rely solely on controllers and their English is poor. The approach is mainly to RY21 on the ILS. There is a river on short final for that runway, as you may tend to be lifted a little and get over the path. The RY03 has a stopway of +/-1000ft so when approaching on RY21 that allows you to fly under the path a little and thus to touch at the beginning of the runway. You'll need all the turf available, the runway is short. Just be cautious with the fence the cable and the vehicles on the road on short final. If you stay just a little under with respect to the PAPI you should be just fine. Be cautious with the brake temperature after landing. I'm not familiar with the performance of the BBJ but if you come in "heavy" you might want to use some autobrake and in GYE it's always hot and humid. As I see it you'll fly from GYE to LIM?! Again, I'm not aware of the performances of the BBJ but watch out for the MEA's enroute. You might want to consider the airway over the coastline.
Lima:
http://www.corpac.gob.pe/jchavez/ Just like in GYE. Be careful! As mentioned previously, (too) much conflicts with the nearby traffic. Be aware of "map shifts" on your HSI. Raw data approach is definitely recommended. Most of the landings on RY15 and you may get some take-offs on RY33. English is not the strong of the controllers.
Cuzco: Never been there. I've heard its operation is very particular. I'll try to find out something about it...
Isla de Pascua: Most of the operations are on RY10. The ILS approach is offset. If it's CAVOK you'll have a nice view of the Island. Otherwise, if it's rainy...caution! Slippery when wet and windy too. The slope of RY10 is 1º and there is a big bump in the middle of it. Strange sensation. HF communications are pretty good. However if you encounter some kind of problem and should you need a relay with the ATC, the HF frequencies with Lan Chile are 9.034 and 10.635. VHF with Pascua is 131.3, Lan Chile ops.
Buenos Aires: This is, I believe, applicable to all Latin America: Be Careful! Here it's definitely non-standard procedure. Neither are the communications. Watch out! You might be clear to anything you request. Landing lights ON as soon as you start descending is recommended. The same during climb, until you level off.
Rio de Janeiro (Galeao):
http://www.aviationbr.com/gig/ Most of the landings are on RY15 and take-offs on RY10. Once again, English is not the strong of controllers. You should be clear to any deviation requested due to weather.
Ft. Lauderdale:
http://www.co.broward.fl.us/fll.htm Geneva:
http://www.gva.ch/en/default.htm I hope it helps. It's all I know and those are personal opinions.
Nice round trip, enjoy. Cheers,